109945829 has 4 divisors (see below), whose sum is σ = 125652384. Its totient is φ = 94239276.

The previous prime is 109945813. The next prime is 109945859. The reversal of 109945829 is 928549901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 928549901 = 311 ⋅2985691.

It is a cyclic number.

It is not a de Polignac number, because 109945829 - 2⁴ = 109945813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109945859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7853267 + ... + 7853280.

It is an arithmetic number, because the mean of its divisors is an integer number (31413096).

Almost surely, 2^109945829 is an apocalyptic number.

It is an amenable number.

109945829 is a deficient number, since it is larger than the sum of its proper divisors (15706555).

109945829 is an equidigital number, since it uses as much as digits as its factorization.

109945829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15706554.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 109945829 is about 10485.5056625801. The cubic root of 109945829 is about 479.0633194566.

The spelling of 109945829 in words is "one hundred nine million, nine hundred forty-five thousand, eight hundred twenty-nine".